1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-pxa/himalaya.c
4 *
5 * Hardware definitions for the HTC Himalaya
6 *
7 * Based on 2.6.21-hh20's himalaya.c and himalaya_lcd.c
8 *
9 * Copyright (c) 2008 Zbynek Michl <Zbynek.Michl@seznam.cz>
10 */
11
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/device.h>
15 #include <linux/fb.h>
16 #include <linux/platform_device.h>
17
18 #include <video/w100fb.h>
19
20 #include <asm/setup.h>
21 #include <asm/mach-types.h>
22 #include <asm/mach/arch.h>
23
24 #include "pxa25x.h"
25
26 #include "generic.h"
27
28 /* ---------------------- Himalaya LCD definitions -------------------- */
29
30 static struct w100_gen_regs himalaya_lcd_regs = {
31 .lcd_format = 0x00000003,
32 .lcdd_cntl1 = 0x00000000,
33 .lcdd_cntl2 = 0x0003ffff,
34 .genlcd_cntl1 = 0x00fff003,
35 .genlcd_cntl2 = 0x00000003,
36 .genlcd_cntl3 = 0x000102aa,
37 };
38
39 static struct w100_mode himalaya4_lcd_mode = {
40 .xres = 240,
41 .yres = 320,
42 .left_margin = 0,
43 .right_margin = 31,
44 .upper_margin = 15,
45 .lower_margin = 0,
46 .crtc_ss = 0x80150014,
47 .crtc_ls = 0xa0fb00f7,
48 .crtc_gs = 0xc0080007,
49 .crtc_vpos_gs = 0x00080007,
50 .crtc_rev = 0x0000000a,
51 .crtc_dclk = 0x81700030,
52 .crtc_gclk = 0x8015010f,
53 .crtc_goe = 0x00000000,
54 .pll_freq = 80,
55 .pixclk_divider = 15,
56 .pixclk_divider_rotated = 15,
57 .pixclk_src = CLK_SRC_PLL,
58 .sysclk_divider = 0,
59 .sysclk_src = CLK_SRC_PLL,
60 };
61
62 static struct w100_mode himalaya6_lcd_mode = {
63 .xres = 240,
64 .yres = 320,
65 .left_margin = 9,
66 .right_margin = 8,
67 .upper_margin = 5,
68 .lower_margin = 4,
69 .crtc_ss = 0x80150014,
70 .crtc_ls = 0xa0fb00f7,
71 .crtc_gs = 0xc0080007,
72 .crtc_vpos_gs = 0x00080007,
73 .crtc_rev = 0x0000000a,
74 .crtc_dclk = 0xa1700030,
75 .crtc_gclk = 0x8015010f,
76 .crtc_goe = 0x00000000,
77 .pll_freq = 95,
78 .pixclk_divider = 0xb,
79 .pixclk_divider_rotated = 4,
80 .pixclk_src = CLK_SRC_PLL,
81 .sysclk_divider = 1,
82 .sysclk_src = CLK_SRC_PLL,
83 };
84
85 static struct w100_gpio_regs himalaya_w100_gpio_info = {
86 .init_data1 = 0xffff0000, /* GPIO_DATA */
87 .gpio_dir1 = 0x00000000, /* GPIO_CNTL1 */
88 .gpio_oe1 = 0x003c0000, /* GPIO_CNTL2 */
89 .init_data2 = 0x00000000, /* GPIO_DATA2 */
90 .gpio_dir2 = 0x00000000, /* GPIO_CNTL3 */
91 .gpio_oe2 = 0x00000000, /* GPIO_CNTL4 */
92 };
93
94 static struct w100fb_mach_info himalaya_fb_info = {
95 .num_modes = 1,
96 .regs = &himalaya_lcd_regs,
97 .gpio = &himalaya_w100_gpio_info,
98 .xtal_freq = 16000000,
99 };
100
101 static struct resource himalaya_fb_resources[] = {
102 [0] = {
103 .start = 0x08000000,
104 .end = 0x08ffffff,
105 .flags = IORESOURCE_MEM,
106 },
107 };
108
109 static struct platform_device himalaya_fb_device = {
110 .name = "w100fb",
111 .id = -1,
112 .dev = {
113 .platform_data = &himalaya_fb_info,
114 },
115 .num_resources = ARRAY_SIZE(himalaya_fb_resources),
116 .resource = himalaya_fb_resources,
117 };
118
119 /* ----------------------------------------------------------------------- */
120
121 static struct platform_device *devices[] __initdata = {
122 &himalaya_fb_device,
123 };
124
himalaya_lcd_init(void)125 static void __init himalaya_lcd_init(void)
126 {
127 int himalaya_boardid;
128
129 himalaya_boardid = 0x4; /* hardcoded (detection needs ASIC3 functions) */
130 printk(KERN_INFO "himalaya LCD Driver init. boardid=%d\n",
131 himalaya_boardid);
132
133 switch (himalaya_boardid) {
134 case 0x4:
135 himalaya_fb_info.modelist = &himalaya4_lcd_mode;
136 break;
137 case 0x6:
138 himalaya_fb_info.modelist = &himalaya6_lcd_mode;
139 break;
140 default:
141 printk(KERN_INFO "himalaya lcd_init: unknown boardid=%d. Using 0x4\n",
142 himalaya_boardid);
143 himalaya_fb_info.modelist = &himalaya4_lcd_mode;
144 }
145 }
146
himalaya_init(void)147 static void __init himalaya_init(void)
148 {
149 pxa_set_ffuart_info(NULL);
150 pxa_set_btuart_info(NULL);
151 pxa_set_stuart_info(NULL);
152 himalaya_lcd_init();
153 platform_add_devices(devices, ARRAY_SIZE(devices));
154 }
155
156
157 MACHINE_START(HIMALAYA, "HTC Himalaya")
158 .atag_offset = 0x100,
159 .map_io = pxa25x_map_io,
160 .nr_irqs = PXA_NR_IRQS,
161 .init_irq = pxa25x_init_irq,
162 .handle_irq = pxa25x_handle_irq,
163 .init_machine = himalaya_init,
164 .init_time = pxa_timer_init,
165 .restart = pxa_restart,
166 MACHINE_END
167